PROBLEM TO BE SOLVED: To provide an intracardiac electrocardiogram amplification device capable of shortening a reset time without lowering a resolution (or anti-noise performance).SOLUTION: An intracardiac electrocardiogram amplification device comprises: a first amplifier 1001 for inputting a stimulation waveform and an intracardiac electrocardiogram waveform to amplify and output the waveforms a low-cut filter 1002 for inputting the output of the first amplifier 1001 and blocking and outputting a low-frequency component and a second amplifier 1003 for inputting the output of the low-cut filter 1002 and amplifying and outputting the output, wherein the output of the first amplifier 1001 and the output of the second amplifier 1003 are used as waveforms after amplified.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT
